An intensive survey of the Sugar Creek Basin, Crawford County, Illinois, 1986 /

"IEPA/WPC/88-030."--Cover.

An intensive survey of Otter Creek, Jersey County, Illinois, July, 1992 /

"July, 1993."

An intensive survey of the Fox River Basin from the Wisconsin State line to Ottawa, Illinois, 1982 /

Survey made cooperatively by the Illinois Environmental Protection Agency and the Illinois Dept. of Conservation.

An intensive survey of Illinois River and its tributaries : a comparison study of 1967 and 1978 stream conditions /

Chiefly tables.

An intensive survey of the Vermilion River basin, Illinois River drainage, summer 1990 /

"IEPA/WPC/93-192."--Cover.

An introduction to leaking underground storage tanks in Illinois.

"Fall 1994."

An analysis of the low emission vehicle program in Illinois /

Cover title.

Analysis of septic tank distribution and septage generation rates in Illinois /

"IEPA/WPC/84-003."

An intensive water quality survey of the Rock River from Rockford to Byron, Illinois, May-October, 1978 /

Bibliography: p. 35.

An investigation of volatile organic chemical contramination in groundwater new Rockton, Illinois /

"March 1988."

Annual environmental conditions report ... /

Title from cover.

Aquifers of Illinois : underground sources of drinking water and non-drinking water /

"September, 1981."

Assessment of nonpoint source impacts on Illinois water quality.

"IEPA/WPC/88-020."

Baseline loadings of nitrogen, phosphorus, and sediments from Illinois watersheds : October 1980 - September 1996 /

The purpose of the report is to evaluate baseline loadings of nutrients and sediment to the Mississippi River and the Ohio River from the state of Illinois and to identify the sources of those loads; also evaluated are baseline loadings of nutrients and sediments to the Illinois River from its tributaries.

Bath Landfill : Decatur, Illinois.

"32571"--Colophon.